On August 13, CHALCO declined 3.02% in regular trading, trading at HKD 8.56/share, with turnover of HKD 62.38 million.

On the news front, BlackRock further reduced its stake in CHALCO H-shares from 11.18% to 10.98% on August 7, following an earlier reduction from 11.21% to 10.47% as of July 31. The sustained trimming by the world's largest asset manager has weighed on market sentiment. Meanwhile, profit-taking emerged after the stock surged over 5% in the prior session, driven by supply-side catalysts including a major Brazilian alumina plant halving output and Middle East shipping route disruptions.

The broader aluminum sector came under collective selling pressure, with CHINAHONGQIAO down 2.62%, CHUANGXIN IND down 3.13%, and NANSHAN AL INTL down 3.08%. Notably, CHALCO's controlling shareholder Chinalco has cumulatively invested approximately RMB 659 million in share purchases, and JPMorgan recently raised its long position to 6.11%, providing partial offset to the foreign outflow pressure.

(The above content is based on publicly available market information, generated by a program or algorithm, and is intended solely as a stock movement alert. It does not constitute investment advice or a basis for trading decisions.)